I really like that definition - I think you hit the nail on the head.
I would have to disagree. You can give up on personal revenge yet can nail the offense on the cross and ask that He provide vengeance for the offense. Scripture says 'Vengeance is Mine' says the Lord.
Forgiveness comes once someone repents and ask to be forgiven. That is a separate issue. Yah (God) does not forgive the unrepentant. Are we holier then Him? Does He require us to do something that even He does not do?
I have dealt with a lot of rape counseling. Those told to just forgive their rapists can't and won't do it. Then they feel guilty that they haven't. My counseling is to give up the desire for personal vengeance, repent of it, but turn it over for Yah to deal with. He is much harsher on that type of error than anything the victim could dish out.
My own fiance was the victim of gang rape. Only 1 of her attackers asked for her forgiveness at their trail. She refused to even forgive him at the time. I convinced her she had to forgive if he was repentant because carrying unforgiveness would poison our relationship if she couldn't forgive me when I repented of an offense. She repented of unforgiveness which is refusing to forgive the repentant.
She wrote him in prison and gave him her forgiveness. She wrote the others that she had turned their offense over to Yah to provide His wrath and vengeance to fall on them for their offense BUT if they repented and asked for her forgiveness, she would grant it. Five of the other gang rapists begged her to stop praying for Yah's wrath and vengeance from falling upon them, got saved and begged her forgiveness.
Rapists are tormented in prison by other inmates. She wrote back forgiving them. They got saved as a result of her actions. One of those was later being raped in prison and asked God to help him forgive his attacker as she had forgiven him. His attacked claimed women never forgive rape. He showed them her letter and from that time on, was not raped in prison. The 6 of them (one was already saved) started a prison ministry.
Two others mocked her, her letters, Yah and Yah's vengeance in prison. They were strong enough to defend themselves in prison from attackers. They were the two that had initiated the rape. When other inmates heard them, they were beaten and raped to death with barbells in the prison yard while their attackers claimed rapist don't mock Yah's vengeance!
The witness in the prison for other inmates had a huge impact on the ministry the other 6 had started. The 6 of them had repented and been forgiven while the other 2 had refused to repented and died brutally.
Them my fiance's pain over her rape turned to joy that 5 people got saved as a result of her suffering. She was totally emotional restored.